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? When should I use the close method of  EntityManagerFactory and EntityManager? As long as ... the close method of  EntityManagerFactory and EntityManager? You can close the  EntityManagerFactory when the web application is closed (see this example ). Usually  EntityManager

.persistence. EntityManagerFactory ; import javax.persistence.Id; import javax.persistence.ManyToMany; import ... t = new Test(); t.test(); } public static class Test{ EntityManagerFactory emf; EntityManager em ... javax.persistence.EntityManager; import javax.persistence. EntityManagerFactory ; import javax

here . You will have to configure the EntityManagerFactory creation to accept a parameter, if you want ... the entityManagerFactory bean which I don't use. public EntityManager getEntityManger () { String tenantId = ThreadContext ... to create the entityManagerFactory bean for startup or else I am getting an error "Caused by: org

( entityManagerFactory ().getNativeEntityManagerFactory()); transactionManager.afterPropertiesSet ... LocalContainerEntityManagerFactoryBean entityManagerFactory () throws ClassNotFoundException ... { // Injected database connection: @PersistenceUnit(unitName="pu") EntityManagerFactory

be able to inject EntityManagerFactory to my beans. Could you help me on this? vachagan Vachagan ... (" entityManagerFactory "); } @Bean public JpaTransactionManager transactionManager() throws ... .setEntityManagerFactory( entityManagerFactory ()); return transactionManager; } @Bean public

LocalContainerEntityManagerFactoryBean entityManagerFactory ( @Qualifier("dataSource") DataSource ... ") LocalContainerEntityManagerFactoryBean entityManagerFactory ) { JpaTransactionManager transactionManager = new JpaTransactionManager(); transactionManager.setEntityManagerFactory( entityManagerFactory .getObject()); return

) {         EntityManagerFactory emf = ( EntityManagerFactory ... .persistence.*; public final class T1522 {     static EntityManagerFactory emf =   ... have updated my code to just use a static EntityManagerFactory so I don't think

Jared Hinze This may happen if the EntityManagerFactory (or PersistenceManagerFactory if you use JDO ... this is the only EntityManagerFactory instance in your application verify that emf.close is indeed reached and executed (e.g ... simple as I can make it. public class Main extends Application { private static EntityManagerFactory

GENERATE_PERSONS_COUNT = 1000;         private EntityManagerFactory entityManagerFactory ;         private EntityManager entityManager ... ;           entityManagerFactory = Persistence

.persistence.EntityManager; import javax.persistence. EntityManagerFactory ; import javax.persistence ... Subject subject; private CallbackHandler callbackHandler; private EntityManagerFactory entityManagerFactory ; private EntityManager entityManager; protected Map sharedState = new HashMap (); private

EntityManagerFactory emf;        private EntityManager em;        ... EntityManagerFactory emf;       private EntityManager em;       public ... EntityManagerFactory createEntityManagerFactory(String persistenceUnitName) { return createEntityManagerFactory

Support Thanks for feedback, I have read the provided links. From  EntityManagerFactory ... ) the drop parameter has to be specified:   EntityManagerFactory emf =      ... EntityManagerFactory from EntityManager.getEntityManagerFactory, but by then it is constructed and I can't

one plugin or several plugins seems to be using one or more EntityManagerFactory / EntityManager ... that the same EntityManager (not just the same  EntityManagerFactory ) is used by ... void main(String[] args) {         EntityManagerFactory emf =  

.EntityManager; import javax.persistence. EntityManagerFactory ; import javax.persistence.FetchType; import javax ... ;   EntityManagerFactory entityManagerFactory = Persistence.createEntityManagerFactory("objectdbsscce.odb");     entityManager = entityManagerFactory .createEntityManager

to which we continuously have a connection (open EntityManagerFactory ). For each user action we create an EntityManager ... . EntityManagerFactory ; import javax.persistence.FlushModeType; import javax.persistence.Persistence ... static void createDB(String db) {   EntityManagerFactory emf = Persistence

Would this be correct?     public List read() { EntityManagerFactory emf ... () { EntityManagerFactory emf = Persistence.createEntityManagerFactory(       ... and see if it works. It would be more efficient to avoid creating and closing EntityManagerFactory instances

to obtain a connection from a closed EntityManagerFactory at com.objectdb.o._PersistenceException.b ... a connection from a closed EntityManagerFactory at com.objectdb.o.MSG.d(MSG.java:61) at com.objectdb.o.OMF ... : Attempt to obtain a connection from a closed EntityManagerFactory at com.objectdb.o

.EntityManager; import javax.persistence. EntityManagerFactory ; import javax.persistence.LockModeType; import ... ;       EntityManagerFactory emf = Persistence.createEntityManagerFactory ... javax.persistence.EntityManager; import javax.persistence. EntityManagerFactory ; import javax

. EntityManagerFactory ; import javax.persistence.Persistence; public final class Test { public static void main(String[] args) {   System.out.println("start");   EntityManagerFactory emf = Persistence   ... .EntityManager; import javax.persistence. EntityManagerFactory ; import javax.persistence.Persistence; public

. EntityManagerFactory ; import javax.persistence.Id; import javax.persistence.ManyToMany; import javax ... ;      EntityManagerFactory emf = Persistence.createEntityManagerFactory ... ; EntityManagerFactory emf = Persistence.createEntityManagerFactory("objectdb:$objectdb/db/test.tmp;drop");  

when everything is done after closing the database? Closing the EntityManagerFactory should complete ... scenarios in which after ordinary  close (of the EntityManagerFactory , not just ... after flush that is not closed). It is a good practice to use a long-lived EntityManagerFactory

with server, in client server mode.    1) EntityManagerFactory emf = Persistence ... ) EntityManagerFactory emf = Persistence.createEntityManagerFactory("objectdb://localhost:6137 ... ; EntityManagerFactory emf = Persistence.createEntityManagerFactory("objectdb:testmemory.mem");  

and closing the creation of EntityManagerFactory or of EntityManager? Is it possible to ask if the ODB ... EmbeddedSystems We can add the following code block after creating the EntityManagerFactory . this. entityManagerFactory = createEntityManagerFactory(....); //trigger the ODB IndexActivation. It failed

with the Persistence api: EntityManagerFactory emf = Persistence.createEntitManagerFactory("project.odb"); //this set ... ; This simple program: import javax.persistence.Entity; import javax.persistence. EntityManagerFactory ... (String[] args) {         EntityManagerFactory emf =   

when the user logs out, as well as EntityManagerFactory . We use em.clear() after every commit ... The heap dump indicates that 9 EntityManagerFactory instances have been created and have not been closed, and ObjectDB is very sensitive for closing every opened EntityManagerFactory . Please try build

an EntityManagerFactory . But when using ObjectDB you can either define a standard persistence unit in ... :' EntityManagerFactory emf = Persistence.createEntityManagerFactory("$objectdb/db/points.odb"); But if you are not using an explicit EntityManagerFactory it is not clear to me how to "inject" easily specs

EntityManagerFactory   EntityManagerFactory emf = Persistence . createEntityManagerFactory ( "objectdb-unit ... : EntityManagerFactory emf = Persistence . createEntityManagerFactory (     

[] args) {     EntityManagerFactory entityManagerFactory = Persistence.createEntityManagerFactory("sscce.odb");     EntityManager entityManager = entityManagerFactory

ArpMonitor.scala: val emf: EntityManagerFactory = Persistence.createEntityManagerFactory("./DB/arp.odb") I ... EntityManagerFactory with multiple  EntityManager instances. It is uncommon to create multiple  EntityManagerFactory instances as demonstrated by your code. support Support

; ... } } public interface EntityFactory { T create(Class entityClass); } EntityManagerFactory entityManagerFactory = (...); entityManagerFactory .setEntityFactory(myFactory); The JPA listeners

; EntityManagerFactory emf =             Persistence ... EntityManagerFactory .. 2016-08-23 00:12:32.946 INFO Main []: *** Create Project and Element model *** 2016-08-23 00 ... : protected void createProject( EntityManagerFactory emf) { log_info("*** Create Project and Element model

hii i have one problem . as you said close EntityManagerFactory to restore database its works ... to store data that is not happening when EntityManagerFactory not closed  prateek Prateek gupta You can proceed with loading the csv file as usual after reopening the  EntityManagerFactory . support Support

(). build (); } @Bean (name = " entityManagerFactory ") public EntityManagerFactory ... ( EntityManagerFactory emf) {      JpaTransactionManager txManager = new JpaTransactionManager

and EntityManagerFactory , but its not. So I am left with EntityManager.getDelegate() instanceof com.objectdb.jdo.PMImpl or EntityManagerFactory instanceof com.objectdb.jpa.EMF. Or putting something in my properties ... the EntityManagerFactory :     boolean isObjectDB = emf.getProperties

: EntityManagerFatory entityManagerFactory = Persistence.createEntityManagerFactory(filePath); EntityManager = entityManagerFactory .createEntityManager(); However I get the following error com.objectdb.o ... if the EntityManagerFactory class can't be initialized because it can't find the database. I have tried with several input

JPA Static Method in javax.persistence.Persistence EntityManagerFactory createEntityManagerFactory (   String persistenceUnitName ) Create and return an EntityManagerFactory for the named persistence unit. Parameters: persistenceUnitName the - name of the persistence unit Return

JPA Method in javax.persistence.EntityManager EntityManagerFactory getEntityManagerFactory () Return the entity manager factory for the entity manager. Return: EntityManagerFactory instance Throws: IllegalStateException - if the entity manager has been closed Since: JPA 2.0

JPA Annotation PersistenceUnit Target: TYPE, METHOD, FIELD Implemented Interfaces: Annotation Expresses a dependency on an EntityManagerFactory and its associated persistence unit. Since: JPA 1.0 Public Annotation Attributes String name default "" (Optional) The name by which the entity manager

. EntityManagerFactory .doFilter( EntityManagerFactory .java:158) at org.apache.catalina.core ... .persistence. EntityManagerFactory emf =         Persistence ... .fastmodel.fastplan.db. EntityManagerFactory .contextInitialized( EntityManagerFactory .java:55) at org.apache

.persistence. EntityManagerFactory ; import javax.persistence.Persistence; public final class F328 { public static void main(String[] args) {   EntityManagerFactory emf = Persistence ... ; import javax.persistence. EntityManagerFactory ; import javax.persistence.Persistence; public final

(String[] args) throws Exception { EntityManagerFactory emf = Persistence.createEntityManagerFactory ... ;            entityManager = entityManagerFactory .createEntityManager ... .no-schema-upgrade", "true"); EntityManagerFactory emf = Persistence.createEntityManagerFactory("D:\\odb

.EntityManager; import javax.persistence. EntityManagerFactory ; import javax.persistence.FetchType; import ... ; EntityManagerFactory emf = Persistence.createEntityManagerFactory("objectdb:$objectdb/db/test.tmp;drop");   ... ; EntityManagerFactory emf =            

; Thanks! Trianglehead Json Error You have 168 EntityManagerFactory instances. Do you access 168 ... one EntityManagerFactory instance, use it for creating multiple EntityManager instances, and remember to close each EntityManagerFactory and EntityManager instance at the end of use. support Support Hi I think

; EntityManagerFactory emf =             Persistence ... ();     }     private static void store( EntityManagerFactory emf ... ();     }     private static void retrieve( EntityManagerFactory emf) {  

the database (i.e. the  EntityManagerFactory ) . If you need an advice regarding tuning cache ... .persistence . EntityManager ; import javax.persistence . EntityManagerFactory ; import javax ... = new File (fileName); if (f. exists ()) { f. delete (); } EntityManagerFactory emf = Persistence

";          EntityManagerFactory emf = Persistence ... ) { EntityManagerFactory emf = Persistence .createEntityManagerFactory("objectdb:c:\\test.tmp;drop ... ";          EntityManagerFactory emf = Persistence

createProject( EntityManagerFactory emf): protected void createProject( EntityManagerFactory emf) { format ... .getTransaction().commit(); ... On attempting to persist it get error: Create EntityManagerFactory

. EntityManagerFactory cast to a PersistenceManagerFactory . If the name given is null or consists ... PersistenceManagerFactory} or javax.persistence. EntityManagerFactory classes Return: the {@link

EntityManagerFactory . Parameters: name - the TransactionType Throws: JDOUserException - if the parameter is not

the same-named property in JSR-220 EntityManagerFactory . Parameters: name - the TransactionType Throws